1 files changed, 86 insertions, 0 deletions

diff --git a/config/enableWaylandAutoDetection.cjs b/config/enableWaylandAutoDetection.cjs
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+++ b/config/enableWaylandAutoDetection.cjs
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C)  2022 Kristóf Marussy <kristof@marussy.com>
+ *
+ * This file is part of Sophie.
+ *
+ * Sophie is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+const { readFile, rename, writeFile } = require('node:fs/promises');
+const path = require('node:path');
+
+const templatePath = path.join(__dirname, '../build-helpers/detect_wayland.sh');
+
+/**
+ * Replaces the `{{handlebars}}` in the template with the replacements.
+ *
+ * Each `{{VARIABLE}}` will be repalced by `value` in the replacement `['VARIABLE', value]`.
+ *
+ * @param {string} template The template.
+ * @param {[string, string][]} replacements The replacements to apply.
+ * @returns
+ */
+function executeTemplate(template, ...replacements) {
+  const replacementsMap = new Map(replacements);
+  return template.replaceAll(
+    /{{([^}]+)}}/g,
+    (_match, /** @type {string} */ variable) => {
+      const replacement = replacementsMap.get(variable);
+      if (replacement === undefined) {
+        throw new Error(`Unknown variable: ${variable}`);
+      }
+      return replacement;
+    },
+  );
+}
+
+/**
+ * Adds a wrapper scripts that detects in wayland is in use and enabled it in chromium.
+ *
+ * The script in `build-heleprs/detect_wayland.sh` uses the `WAYLAND_DISPLAY` environmental
+ * variable to detect whether wayland is in use.
+ *
+ * If wayland is in use, the script enables the wayland ozone backed for chromium
+ * and pipewire screen sharing. Otherwise, the x11 ozone backend will be used.
+ *
+ * @param {import('electron-builder').AfterPackContext} context The `electron-builder` context.
+ * @return {Promise<void>} The promise to add the wrapper script.
+ * @see https://stackoverflow.com/a/45537237
+ */
+module.exports = async function enableWaylandAutoDetection(context) {
+  const {
+    appOutDir,
+    packager: {
+      appInfo: { productName, productFilename },
+    },
+  } = context;
+
+  const electronBinaryPath = path.join(appOutDir, productFilename);
+  const newFilename = `${productFilename}-bin`;
+  const newElectronBinaryPath = path.join(appOutDir, newFilename);
+
+  await rename(electronBinaryPath, newElectronBinaryPath);
+
+  const wrapperScriptTempate = await readFile(templatePath, 'utf8');
+  const wrapperScript = executeTemplate(
+    wrapperScriptTempate,
+    ['PRODUCT_NAME', productName],
+    ['REAL_BINARY_NAME', newFilename],
+  );
+  await writeFile(electronBinaryPath, wrapperScript, {
+    encoding: 'utf8',
+    mode: 0o755,
+  });
+};